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2. Why does the improvement of the energy performance of the building stock influence the success of the energy transition?

Improving the energy efficiency of buildings is an important element of the efforts to attain the German government’s ambitious climate targets. After all, nearly 40% of energy is consumed by buildings in Germany - for heating, hot water, ventilation, cooling and lighting. Insulating buildings helps to lower energy consumption, save heating costs, and reduce the use of finite fossil fuels.